Boat hydrofoil



FIG. 1 is a top perspective view of a first embodiment of a boat hydrofoil showing the new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a front end view thereof;

FIG. 6 is a rear end view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a top perspective view of a second embodiment of the boat hydrofoil;

FIG. 9 is a bottom perspective view thereof;

FIG. 10 is a top plan view thereof;

FIG. 11 is a side elevational view thereof;

FIG. 12 is a front end view thereof;

FIG. 13 is a rear end view thereof; and,

FIG. 14 is a bottom view thereof.

The broken lines in the drawings illustrate portions of the boat hydrofoil that form no part of the claimed design. 

CLAIM The ornamental design for a boat hydrofoil, as shown and described. 